Struct tracing_subscriber::filter::LevelFilter

pub struct LevelFilter(_);

A filter which is enabled for a given verbosity level and below.

Methods

impl LevelFilter

pub const OFF: LevelFilter

The "off" level.

Designates that trace instrumentation should be completely disabled.

pub const ERROR: LevelFilter

The "error" level.

Designates very serious errors.

pub const WARN: LevelFilter

The "warn" level.

Designates hazardous situations.

pub const INFO: LevelFilter

The "info" level.

Designates useful information.

pub const DEBUG: LevelFilter

The "debug" level.

Designates lower priority information.

pub const TRACE: LevelFilter

The "trace" level.

Designates very low priority, often extremely verbose, information.

Trait Implementations

impl Clone for LevelFilter

fn clone(&self) -> LevelFilter

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LevelFilter

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Display for LevelFilter

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Eq for LevelFilter

impl From<Level> for LevelFilter

fn from(level: Level) -> Self

Performs the conversion.

impl From<LevelFilter> for Directive

fn from(level: LevelFilter) -> Self

Performs the conversion.

impl From<Option<Level>> for LevelFilter

fn from(level: Option<Level>) -> Self

Performs the conversion.

impl FromStr for LevelFilter

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(from: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Into<Option<Level>> for LevelFilter

fn into(self) -> Option<Level>

Performs the conversion.

impl<S: Subscriber> Layer<S> for LevelFilter

fn register_callsite(&self, metadata: &'static Metadata<'static>) -> Interest

Registers a new callsite with this layer, returning whether or not the layer is interested in being notified about the callsite, similarly to [Subscriber::register_callsite].

fn enabled(&self, metadata: &Metadata, _: Context<S>) -> bool

Returns true if this layer is interested in a span or event with the given metadata in the current [Context], similarly to [Subscriber::enabled].

fn new_span(&self, attrs: &Attributes, id: &Id, ctx: Context<S>)

Notifies this layer that a new span was constructed with the given Attributes and Id.

fn on_record(&self, _span: &Id, _values: &Record, _ctx: Context<S>)

Notifies this layer that a span with the given Id recorded the given values.

fn on_follows_from(&self, _span: &Id, _follows: &Id, _ctx: Context<S>)

Notifies this layer that a span with the ID span recorded that it follows from the span with the ID follows.

fn on_event(&self, _event: &Event, _ctx: Context<S>)

Notifies this layer that an event has occurred.

fn on_enter(&self, _id: &Id, _ctx: Context<S>)

Notifies this layer that a span with the given ID was entered.

fn on_exit(&self, _id: &Id, _ctx: Context<S>)

Notifies this layer that the span with the given ID was exited.

fn on_close(&self, _id: Id, _ctx: Context<S>)

Notifies this layer that the span with the given ID has been closed.

fn on_id_change(&self, _old: &Id, _new: &Id, _ctx: Context<S>)

Notifies this layer that a span ID has been cloned, and that the subscriber returned a different ID.

fn and_then<L>(self, layer: L) -> Layered<L, Self, S> where
    L: Layer<S>,
    Self: Sized, 

Composes this layer around the given Layer, returning a Layered struct implementing Layer.

fn with_subscriber(self, inner: S) -> Layered<Self, S> where
    Self: Sized, 

Composes this Layer with the given [Subscriber], returning a Layered struct that implements [Subscriber].

impl Ord for LevelFilter

fn cmp(&self, other: &LevelFilter) -> Ordering

This method returns an [Ordering] between self and other.

#[must_use] fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use] fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use] fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<Level> for LevelFilter

fn eq(&self, other: &Level) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialEq<LevelFilter> for LevelFilter

fn eq(&self, other: &LevelFilter) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &LevelFilter) -> bool

This method tests for !=.

impl PartialOrd<Level> for LevelFilter

fn partial_cmp(&self, other: &Level) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use] fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use] fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use] fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use] fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PartialOrd<LevelFilter> for LevelFilter

fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &LevelFilter) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &LevelFilter) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &LevelFilter) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &LevelFilter) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for LevelFilter

impl StructuralPartialEq for LevelFilter